Hi Vignesh, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 3e14f70c05cda4794901ed8f976de3a88deebcc0 commit: 439c7183e5b97952bba1747f5ffc4dea45a6a18b [3450/5074] serial: 8250: 8250_omap: Disable RX interrupt after DMA enable config: arm64-randconfig-r024-20201109 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 09ec07827b1128504457a93dee80b2ceee1af600) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 439c7183e5b97952bba1747f5ffc4dea45a6a18b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): static const struct soc_device_attribute k3_soc_devices[] = { ^ 1 warning generated. vim +/k3_soc_devices +1199 drivers/tty/serial/8250/8250_omap.c 1198 1200 { .family = "AM65X", }, 1201 { .family = "J721E", .revision = "SR1.0" }, 1202 }; 1203 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org